I can see why some people aren’t into this show; its tone is all over the place. Personally I think it works. A majority of the show’s running-time is light and absurd – animal puns & Todd being Todd – especially early in the series and early in each episode. But when the serious moments come, they really beat your guts out. At its core it’s a tragedy, and the sadness wouldn’t resonate without the silliness, because that is its source.
Hollywood is a silly business in a ridiculous town, and it ate Bojack alive. He’s a very flawed guy who wanted to do something meaningful with his life but chose the worst place on Earth to try. Showbiz is so competitive that merely succeeding is hard – doing it with any dignity is almost impossible. Years ago, Bojack deliberately chose to compromise himself. Now he’s dealing with the consequences: he’s rich, famous, and irrelevant.